Continuous filter-press.



` D. B. SWEENEY. CONTINUOUS FILTER PRESS: Avrucmou mio ma. 22. 191s.

Patented Jan. 1,1917.

` klllW especially DANIEL BERNARD SWEENEY, O BAYONNE, NEW JERSEY.

CONTINUOUS FIIlifllER-PRESSA 4 "i--ln-. Specification of Letters Patent.

Application led March 22, 1916.

To all eli/0m 'it may concern:

Pc it known that I, DANIELV BERNARD SWEENEY, citizen of the United States of America, residing at Bayonne, Hudson county, State of New Jersey, have invented :i new and useful Improvement in Con- V,tinuous Filter-Pressesg and I do hereby dechii'e the following tobe a full, clear, and exact description of the saine.

This invention relates to filters, particw larly devices or nisichines for sel'iarating; solids oi' seini-solids from liquids, and more to machines for separating wett or other hy-products of oils.

'.lheobject of the invention to provide ii. very compact und efficient liltcr for seid purpose, which will be contiiiuousrin operation, require little power or space, ,give .fi uniform output, be automatic in operation, and which will not easily get out of order. have provided the continuous materiel froin oils or lter press .hereinafter particularly pointed out that various changes in the sizes, shapes und details of construction und combination may hc ii'iade i Without departing from thc spirit und scope end lai'iges 8 may. be bolted h' i material 10 which' is secured I of the invention as chiiined.

In the :iccoinpanying,r f lrawiiigi showing, )y wey of example only one of iiiuiiy possible embodiments of the inventioi'i, Figure 1 i 1s a. side-elerstion of the machine. part being broken away; Figfl is a crosssecti'onal View shown. on a .larger seule; Fig. 3 is u frug- Inental portion iitf'lfig'. shown on i still larger scale; and Fig. el is a longitudinal. Sectionaljviewof a detail.

Referring more particularly to the drawing, the filter press is shown provided with a. perforated cylindrical casing 5 which may be mede up oflanyconvenient'nuiiibci of Segments', provided Awith 'side ribs 7 and by means of which the sections together as shown, or may loe inged or otherwise secured. The casing is perforatioris 9 and is lined suitable canvas or li'ltering;r at its edges heetween the canvas and t e perforations 9 a wire fabric 11 is dis` posed. lBetween the portions of canvas caught between 'the ribs 7, metallic strips 12 are secured, and project inwardly toward the axis of the'desing forming a bearing for 'the screw conffeyer 14 disposed longitudiinteriorly withv tween the ribs 7.

nelly ofthe casing and provided With end described, it being Patented J an. 1 6, 1917. serial Nn. 85,814.

shafts 16 and 17 received iii suitable bearings in the closed ends of the casing. The strips 12 serve to support the screw conveyor and hold it n. slight distance away from the cuir vas 10. At the inlet end of thev casing, a feed pipe 19 conducts the liquid to be filtered to the interior of the casing. At the outlet end a pipe il() discharges the wax or liquid feed materiel through the adjustable valve 21 controlled by n weight 22. The end shaft 17, is continued through :i suitable stufliiig loox 24 to the outside of the casing and. is provided with u gear or the like 25 by which power is received for rotating` the feed screw 4in the direction of the arrow of Fig. 2,

The operation of the filter press is :is follows :-The oil or liquid to he filtered is fed in through the feed pipe 19 :it a suitable pressure, for instance 30() pounds, and inlinediutely begins to pass through the canvas, the wire fabric tions 9, .leaving and out through the perform, K the winx on the canvas to be scraped off by the screw conveyer and forced dryness of the wax attained. The resistance y to the rotation of the. greatest'ut the discliiu'ge is placed at that end.

I. claim my inventionv r- 1. In a filter press, the coi'nbinution of u, cylindrical filter casing; a rotary screw disw posed lonjritudinallyof the casing; feed and discharge pipes :it opposite ends of thc cusing; and means eig'aging siiid screw at points alonp` the side thereof for holding the screw out of contact the lusing.

Ini'a filter press, the cyiindrical liltci' casiiligr;

screw conveyor, is end, hence the gear vcombination ofa u continuous rotary 4screw disposed longitudinally ofthe casing; feed and discharge pipes at ,opp-o site-'ends of the casing; Vand iiicans engaging' said screw :it points along the side thereof for holding the screw out the sides of the casing.`

3.In a filter l'ircss, the combination of a cylindrical liltering casing; u screw con-A Veyer in said casing; feed and discharge pipes at opposite endsof the ciising; und means engaging :i plurality of points ofmthe screw for holding it out/of contact witli the casing. Y

4.' In a filter press, the combination of an elongated perforatedcylindrical casing; a

of contact with with the sides of v layer of canvas lining the casing; a screw conveyer in the casing; ribs for holding the conveyer from the` canvas; means for rotat` ing the conveyer; and a feed pipe and a discharge pipe communicating with opposite ends of the conveyer.

5. In a filter press, the combination of a cylindrical filtering casing; comprising segments; a screw conveyer in said casing; and strips placed between said segments and holding the screw from the sides of the casing. l G. In a' filter press, the comliination of' a. cylindrical filtering casing; a screw conv veyer therein; and logitudinal ribs inside ot' the casing for holding the screw conveyer from the sides thereof.

7. In a filter press, the con'ibination of an elongated, perforated cylindrical casing comprisin a plurality of segments and closed at oth ends; a layer of canvas lin ing the cylinder; a wire fabric between the .canvas and the 1 metallic strips secured between said ments and projecting a short distance into the cylinder; a` screw conreyer journaled in the ends of said casing and centered in said casing by said strips; a feed pipe and a discharge pipe communicating with opposite ends of the casing; a safety valve vin said discharge pipe; and means for rotating the conveyer.

8. In a filter press,

the combination of a cylindrical casing comprising perforated side segments; a canvas lining for each segment and having its ed'ge-f secured between the segments; and a screw conveyor in the casing.

9.- In a filter press, the combination of a cylindricalv casing comprising perforated side segments; a canvas liningfor each segment and having its edges secured between the segments; a screw conveyer in the casing; and a wire mesh between each canvas and the adjacent segment.

10. In a filter press, the combination of a cylindrical perforated casing; ing therein havingiall of its inner face eX posed to fluid in the casingpfa wire fabric disposed between the sides of/,the casing and the? canvas for holding th canvas ont of Contact with'the casing and permitting the passage -of liquid, betweeni the casing and the canvas, from imperforate portions to the perfcrations; and means disposed along the sides of the casing for holding said scraping m/ans just out of contact with the filtering s1 es.`

` 11. In a filter press, the combination of a cylindrical' casing having filtering sides; a

perforations of the cylinder;

ajcanvas 1ncharge pipes at screw conveyor in said casing; feed. and discharge pipes at opposite ends of the casing, said screw having threads shallow eiicugh to prevent the passage of liquid along the bottom of' the screw without filtering; and means disposed along the sides of the casing for holding said scraping means 'just out of contact with the filtering sides.

12 1n a filter press, the combination of a cylindrical casing having filtering sides; a screw conveyer in said casing; vfeed and discharge pipes at opposite ends or' the casing, said screw having shallow threads7 said threads having a depth approximately oneeighth of the diameter of the screw; and means disposed along the sides of tlie casing for holding said scraping means just ont ci Contact with the filtering sides,

13b In a filter press, the combination of cylindrical casing comprising perforated side segments; and end pieces; a canvas lining for leach segment having its wedge-s brought between. the segments; a. wire mesh between each canvas and the adjacent Segment; a continuous screw extending approximate'v from end to end of the casing and having shallow threads haring a depth about one-eighth the diameter of thescrew and approaching as close as possible to said canvas without-*touching it 5 strips placed between the edges. oi' the canvas between the segments and projecting inwardly and holding the screw out of contact with the canvas; feed and discharge pipes at the opposite ends of the casing; and a weighted safety valve in. the discharge pipe.

14. In a filter press, the combination of a casing having filtering sides; feed and dis* charge pipes at opposite. ends of the casing; scraping means for feeding material along said sides and scraping it therefroi'n; and means disposed along the sides of the casing for holding said scraping means just 'ont of contact with the filtering sides. j

15r In a filter press, the combination of a casing having filtering sides; feed and disopposite ends oit' the casing;

means for-:feeding material along es and scraping it therefrom; and

scrapin said si ribs disposed along'the sides of the casing for holding said scraping means just out of -contact With the filtering sides.

DANIEL BERNARD swEnaifEY.

Witnesses CoRNELms HoviNo, H, M. KILPATRIGK. 

